diff --git a/helpers/make-rdiff-backup b/helpers/make-rdiff-backup
index a798da5670befd0889ee55af25dd426c624ade58..57af6682343e2729957b2da5ea00a42a828a7f7e 100644
--- a/helpers/make-rdiff-backup
+++ b/helpers/make-rdiff-backup
@@ -20,6 +20,7 @@
 VERSION=1
 EXTERNAL='deb-src http://archive.ubuntu.com/ubuntu bionic universe'
 BACKPORTS=true
+DEPENDS=python-pylibacl,python-pyxattr
 
 . ./config